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47 lines
2.0 KiB
JavaScript
47 lines
2.0 KiB
JavaScript
// Copyright 2018 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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load('test/mjsunit/wasm/wasm-module-builder.js');
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const builder = new WasmModuleBuilder();
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builder.addFunction('main', kSig_d_d)
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.addBody([
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// Call with param 0 (converted to i64), to fill the stack with non-zero
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// values.
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kExprGetLocal, 0, kExprI64SConvertF64, // arg 0
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kExprGetLocal, 0, kExprI64SConvertF64, // arg 1
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kExprGetLocal, 0, kExprI64SConvertF64, // arg 2
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kExprGetLocal, 0, kExprI64SConvertF64, // arg 3
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kExprGetLocal, 0, kExprI64SConvertF64, // arg 4
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kExprGetLocal, 0, kExprI64SConvertF64, // arg 5
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kExprGetLocal, 0, kExprI64SConvertF64, // arg 6
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kExprGetLocal, 0, kExprI64SConvertF64, // arg 7
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kExprCallFunction, 1, // call #1
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// Now call with 0 constants.
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// The bug was that they were written out as i32 values, thus the upper 32
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// bit were the previous values on that stack memory.
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kExprI64Const, 0, // i64.const 0 [0]
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kExprI64Const, 0, // i64.const 0 [1]
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kExprI64Const, 0, // i64.const 0 [2]
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kExprI64Const, 0, // i64.const 0 [3]
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kExprI64Const, 0, // i64.const 0 [4]
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kExprI64Const, 0, // i64.const 0 [5]
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kExprI64Const, 0, // i64.const 0 [6]
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kExprI64Const, 0, // i64.const 0 [7]
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kExprCallFunction, 1, // call #1
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// Return the sum of the two returned values.
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kExprF64Add
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])
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.exportFunc();
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builder.addFunction(undefined, makeSig(new Array(8).fill(kWasmI64), [kWasmF64]))
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.addBody([
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kExprGetLocal, 7, // get_local 7 (last parameter)
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kExprF64SConvertI64, // f64.convert_s/i64
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]);
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const instance = builder.instantiate();
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const big_num_1 = 2 ** 48;
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const big_num_2 = 2 ** 56 / 3;
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assertEquals(big_num_1, instance.exports.main(big_num_1));
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assertEquals(big_num_2, instance.exports.main(big_num_2));
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